docs: def new_format(self, navbar: BeautifulSoup, content: BeautifulSoup) -> List[str]:
  
          """
          Extracts email message information if it uses the new Mailman format
          Args:
              content: BeautifulSoup
  
          Returns: List[str]
          """
          
          sender = content.find(id='from').text.split('via')[0][6:].strip()
          date_str = content.find(id='date').text.split(': ')[1].strip()
          date = parsedate_to_datetime(date_str).isoformat()[:19]
          body = content.find(id='body').text.strip()
          nxt, rep_to = None, None
          
          links = navbar.findAll('a')
          for l in links:
              if 'Next in thread' in str(l):
                  nxt = '/'.join(self.email_url.split('/')[:-1]) + '/' + l['href']
                  nxt = nxt[1:] if nxt[0] == '/' else nxt
              elif 'reply to' in str(l):
                  rep_to = '/'.join(self.email_url.split('/')[:-1]) + '/' + l['href']
                  rep_to = rep_to[1:] if rep_to[0] == '/' else rep_to
          return [str(i) for i in [sender, date, body, nxt, rep_to]]